108140309 has 2 divisors, whose sum is σ = 108140310. Its totient is φ = 108140308.

The previous prime is 108140297. The next prime is 108140339. The reversal of 108140309 is 903041801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80156209 + 27984100 = 8953^2 + 5290^2 .

It is a cyclic number.

It is not a de Polignac number, because 108140309 - 2⁴ = 108140293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108140339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54070154 + 54070155.

It is an arithmetic number, because the mean of its divisors is an integer number (54070155).

Almost surely, 2^108140309 is an apocalyptic number.

It is an amenable number.

108140309 is a deficient number, since it is larger than the sum of its proper divisors (1).

108140309 is an equidigital number, since it uses as much as digits as its factorization.

108140309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 108140309 is about 10399.0532742168. The cubic root of 108140309 is about 476.4264547307.

The spelling of 108140309 in words is "one hundred eight million, one hundred forty thousand, three hundred nine".